2 * pppd.h - PPP daemon global declarations.
4 * Copyright (c) 1989 Carnegie Mellon University.
7 * Redistribution and use in source and binary forms are permitted
8 * provided that the above copyright notice and this paragraph are
9 * duplicated in all such forms and that any documentation,
10 * advertising materials, and other materials related to such
11 * distribution and use acknowledge that the software was developed
12 * by Carnegie Mellon University. The name of the
13 * University may not be used to endorse or promote products derived
14 * from this software without specific prior written permission.
15 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
17 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
19 * $Id: pppd.h,v 1.57 2001/02/22 03:15:21 paulus Exp $
29 #include <stdio.h> /* for FILE */
30 #include <limits.h> /* for NGROUPS_MAX */
31 #include <sys/param.h> /* for MAXPATHLEN and BSD4_4, if defined */
32 #include <sys/types.h> /* for u_int32_t, if defined */
33 #include <sys/time.h> /* for struct timeval */
34 #include <net/ppp_defs.h>
41 #define __V(x) (va_alist) va_dcl
54 #define NUM_PPP 1 /* One PPP interface supported (per process) */
55 #define MAXWORDLEN 1024 /* max length of word in file (incl null) */
56 #define MAXARGS 1 /* max # args to a command */
57 #define MAXNAMELEN 256 /* max length of hostname or name for auth */
58 #define MAXSECRETLEN 256 /* max length of password or secret */
61 * Option descriptor structure.
64 typedef unsigned char bool;
77 char *name; /* name of the option */
89 /* Values for flags */
90 #define OPT_VALUE 0xff /* mask for presupplied value */
91 #define OPT_HEX 0x100 /* int option is in hex */
92 #define OPT_NOARG 0x200 /* option doesn't take argument */
93 #define OPT_OR 0x400 /* OR in argument to value */
94 #define OPT_INC 0x800 /* increment value */
95 #define OPT_PRIV 0x1000 /* privileged option */
96 #define OPT_STATIC 0x2000 /* string option goes into static array */
97 #define OPT_LLIMIT 0x4000 /* check value against lower limit */
98 #define OPT_ULIMIT 0x8000 /* check value against upper limit */
99 #define OPT_LIMITS (OPT_LLIMIT|OPT_ULIMIT)
100 #define OPT_ZEROOK 0x10000 /* 0 value is OK even if not within limits */
101 #define OPT_NOINCR 0x20000 /* value mustn't be increased */
102 #define OPT_ZEROINF 0x40000 /* with OPT_NOINCR, 0 == infinity */
103 #define OPT_MULTIPART 0x80000 /* optionally sets multiple variables */
104 #define OPT_A2COPY 0x200000 /* addr2 -> second location to rcv value */
105 #define OPT_ENABLE 0x400000 /* use *addr2 as enable for option */
106 #define OPT_PRIVFIX 0x800000 /* user can't override if set by root */
107 #define OPT_INITONLY 0x2000000 /* option can only be set in init phase */
108 #define OPT_DEVEQUIV 0x4000000 /* equiv to device name */
109 #define OPT_DEVNAM (OPT_INITONLY | OPT_DEVEQUIV)
111 #define OPT_VAL(x) ((x) & OPT_VALUE)
113 /* Values for priority */
114 #define OPRIO_DEFAULT 0 /* a default value */
115 #define OPRIO_CFGFILE 1 /* value from a configuration file */
116 #define OPRIO_CMDLINE 2 /* value from the command line */
117 #define OPRIO_SECFILE 3 /* value from options in a secrets file */
118 #define OPRIO_ROOT 100 /* added to priority if OPT_PRIVFIX && root */
121 #define GIDSET_TYPE gid_t
124 /* Structure representing a list of permitted IP addresses. */
125 struct permitted_ip {
126 int permit; /* 1 = permit, 0 = forbid */
127 u_int32_t base; /* match if (addr & mask) == base */
128 u_int32_t mask; /* base and mask are in network byte order */
132 * Unfortunately, the linux kernel driver uses a different structure
133 * for statistics from the rest of the ports.
134 * This structure serves as a common representation for the bits
138 unsigned int bytes_in;
139 unsigned int bytes_out;
142 /* Used for storing a sequence of words. Usually malloced. */
144 struct wordlist *next;
148 /* An endpoint discriminator, used with multilink. */
149 #define MAX_ENDP_LEN 20 /* maximum length of discriminator value */
152 unsigned char length;
153 unsigned char value[MAX_ENDP_LEN];
156 /* values for epdisc.class */
157 #define EPD_NULL 0 /* null discriminator, no data */
162 #define EPD_PHONENUM 5
164 typedef void (*notify_func) __P((void *, int));
167 struct notifier *next;
176 extern int hungup; /* Physical layer has disconnected */
177 extern int ifunit; /* Interface unit number */
178 extern char ifname[]; /* Interface name */
179 extern char hostname[]; /* Our hostname */
180 extern u_char outpacket_buf[]; /* Buffer for outgoing packets */
181 extern int phase; /* Current state of link - see values below */
182 extern int baud_rate; /* Current link speed in bits/sec */
183 extern char *progname; /* Name of this program */
184 extern int redirect_stderr;/* Connector's stderr should go to file */
185 extern char peer_authname[];/* Authenticated name of peer */
186 extern int privileged; /* We were run by real-uid root */
187 extern int need_holdoff; /* Need holdoff period after link terminates */
188 extern char **script_env; /* Environment variables for scripts */
189 extern int detached; /* Have detached from controlling tty */
190 extern GIDSET_TYPE groups[NGROUPS_MAX]; /* groups the user is in */
191 extern int ngroups; /* How many groups valid in groups */
192 extern struct pppd_stats link_stats; /* byte/packet counts etc. for link */
193 extern int link_stats_valid; /* set if link_stats is valid */
194 extern int link_connect_time; /* time the link was up for */
195 extern int using_pty; /* using pty as device (notty or pty opt.) */
196 extern int log_to_fd; /* logging to this fd as well as syslog */
197 extern bool log_to_file; /* log_to_fd is a file */
198 extern bool log_to_specific_fd; /* log_to_fd was specified by user */
199 extern char *no_ppp_msg; /* message to print if ppp not in kernel */
200 extern volatile int status; /* exit status for pppd */
201 extern bool devnam_fixed; /* can no longer change devnam */
202 extern int unsuccess; /* # unsuccessful connection attempts */
203 extern int do_callback; /* set if we want to do callback next */
204 extern int doing_callback; /* set if this is a callback */
205 extern char ppp_devnam[MAXPATHLEN];
206 extern struct notifier *pidchange; /* for notifications of pid changing */
207 extern struct notifier *phasechange; /* for notifications of phase changes */
208 extern struct notifier *exitnotify; /* for notification that we're exiting */
209 extern struct notifier *sigreceived; /* notification of received signal */
210 extern int listen_time; /* time to listen first (ms) */
211 extern char *current_option; /* option we're processing now */
212 extern int option_priority; /* priority of current options */
214 /* Values for do_callback and doing_callback */
215 #define CALLBACK_DIALIN 1 /* we are expecting the call back */
216 #define CALLBACK_DIALOUT 2 /* we are dialling out to call back */
219 * Variables set by command-line options.
222 extern int debug; /* Debug flag */
223 extern int kdebugflag; /* Tell kernel to print debug messages */
224 extern int default_device; /* Using /dev/tty or equivalent */
225 extern char devnam[MAXPATHLEN]; /* Device name */
226 extern int crtscts; /* Use hardware flow control */
227 extern bool modem; /* Use modem control lines */
228 extern int inspeed; /* Input/Output speed requested */
229 extern u_int32_t netmask; /* IP netmask to set on interface */
230 extern bool lockflag; /* Create lock file to lock the serial dev */
231 extern bool nodetach; /* Don't detach from controlling tty */
232 extern bool updetach; /* Detach from controlling tty when link up */
233 extern char *initializer; /* Script to initialize physical link */
234 extern char *connect_script; /* Script to establish physical link */
235 extern char *disconnect_script; /* Script to disestablish physical link */
236 extern char *welcomer; /* Script to welcome client after connection */
237 extern char *ptycommand; /* Command to run on other side of pty */
238 extern int maxconnect; /* Maximum connect time (seconds) */
239 extern char user[MAXNAMELEN];/* Our name for authenticating ourselves */
240 extern char passwd[MAXSECRETLEN]; /* Password for PAP or CHAP */
241 extern bool auth_required; /* Peer is required to authenticate */
242 extern bool persist; /* Reopen link after it goes down */
243 extern bool uselogin; /* Use /etc/passwd for checking PAP */
244 extern char our_name[MAXNAMELEN];/* Our name for authentication purposes */
245 extern char remote_name[MAXNAMELEN]; /* Peer's name for authentication */
246 extern bool explicit_remote;/* remote_name specified with remotename opt */
247 extern bool demand; /* Do dial-on-demand */
248 extern char *ipparam; /* Extra parameter for ip up/down scripts */
249 extern bool cryptpap; /* Others' PAP passwords are encrypted */
250 extern int idle_time_limit;/* Shut down link if idle for this long */
251 extern int holdoff; /* Dead time before restarting */
252 extern bool holdoff_specified; /* true if user gave a holdoff value */
253 extern bool notty; /* Stdin/out is not a tty */
254 extern char *pty_socket; /* Socket to connect to pty */
255 extern char *record_file; /* File to record chars sent/received */
256 extern bool sync_serial; /* Device is synchronous serial device */
257 extern int maxfail; /* Max # of unsuccessful connection attempts */
258 extern char linkname[MAXPATHLEN]; /* logical name for link */
259 extern bool tune_kernel; /* May alter kernel settings as necessary */
260 extern int connect_delay; /* Time to delay after connect script */
261 extern int max_data_rate; /* max bytes/sec through charshunt */
262 extern int req_unit; /* interface unit number to use */
263 extern bool multilink; /* enable multilink operation */
264 extern bool noendpoint; /* don't send or accept endpt. discrim. */
265 extern char *bundle_name; /* bundle name for multilink */
268 extern struct bpf_program pass_filter; /* Filter for pkts to pass */
269 extern struct bpf_program active_filter; /* Filter for link-active pkts */
273 extern bool ms_lanman; /* Use LanMan password instead of NT */
274 /* Has meaning only with MS-CHAP challenges */
277 extern char *current_option; /* the name of the option being parsed */
278 extern int privileged_option; /* set iff the current option came from root */
279 extern char *option_source; /* string saying where the option came from */
285 #define PHASE_INITIALIZE 1
286 #define PHASE_SERIALCONN 2
287 #define PHASE_DORMANT 3
288 #define PHASE_ESTABLISH 4
289 #define PHASE_AUTHENTICATE 5
290 #define PHASE_CALLBACK 6
291 #define PHASE_NETWORK 7
292 #define PHASE_RUNNING 8
293 #define PHASE_TERMINATE 9
294 #define PHASE_DISCONNECT 10
295 #define PHASE_HOLDOFF 11
298 * The following struct gives the addresses of procedures to call
299 * for a particular protocol.
302 u_short protocol; /* PPP protocol number */
303 /* Initialization procedure */
304 void (*init) __P((int unit));
305 /* Process a received packet */
306 void (*input) __P((int unit, u_char *pkt, int len));
307 /* Process a received protocol-reject */
308 void (*protrej) __P((int unit));
309 /* Lower layer has come up */
310 void (*lowerup) __P((int unit));
311 /* Lower layer has gone down */
312 void (*lowerdown) __P((int unit));
313 /* Open the protocol */
314 void (*open) __P((int unit));
315 /* Close the protocol */
316 void (*close) __P((int unit, char *reason));
317 /* Print a packet in readable form */
318 int (*printpkt) __P((u_char *pkt, int len,
319 void (*printer) __P((void *, char *, ...)),
321 /* Process a received data packet */
322 void (*datainput) __P((int unit, u_char *pkt, int len));
323 bool enabled_flag; /* 0 iff protocol is disabled */
324 char *name; /* Text name of protocol */
325 char *data_name; /* Text name of corresponding data protocol */
326 option_t *options; /* List of command-line options */
327 /* Check requested options, assign defaults */
328 void (*check_options) __P((void));
329 /* Configure interface for demand-dial */
330 int (*demand_conf) __P((int unit));
331 /* Say whether to bring up link for this pkt */
332 int (*active_pkt) __P((u_char *pkt, int len));
335 /* Table of pointers to supported protocols */
336 extern struct protent *protocols[];
342 /* Procedures exported from main.c. */
343 void set_ifunit __P((int)); /* set stuff that depends on ifunit */
344 void detach __P((void)); /* Detach from controlling tty */
345 void die __P((int)); /* Cleanup and exit */
346 void quit __P((void)); /* like die(1) */
347 void novm __P((char *)); /* Say we ran out of memory, and die */
348 void timeout __P((void (*func)(void *), void *arg, int s, int us));
349 /* Call func(arg) after s.us seconds */
350 void untimeout __P((void (*func)(void *), void *arg));
351 /* Cancel call to func(arg) */
352 void record_child __P((int, char *, void (*) (void *), void *));
353 int device_script __P((char *cmd, int in, int out, int dont_wait));
354 /* Run `cmd' with given stdin and stdout */
355 pid_t run_program __P((char *prog, char **args, int must_exist,
356 void (*done)(void *), void *arg));
357 /* Run program prog with args in child */
358 void reopen_log __P((void)); /* (re)open the connection to syslog */
359 void update_link_stats __P((int)); /* Get stats at link termination */
360 void script_setenv __P((char *, char *, int)); /* set script env var */
361 void script_unsetenv __P((char *)); /* unset script env var */
362 void new_phase __P((int)); /* signal start of new phase */
363 void add_notifier __P((struct notifier **, notify_func, void *));
364 void remove_notifier __P((struct notifier **, notify_func, void *));
365 void notify __P((struct notifier *, int));
367 /* Procedures exported from tty.c. */
368 void tty_init __P((void));
369 void tty_device_check __P((void));
370 void tty_check_options __P((void));
371 int connect_tty __P((void));
372 void disconnect_tty __P((void));
373 void tty_close_fds __P((void));
374 void cleanup_tty __P((void));
376 /* Procedures exported from utils.c. */
377 void log_packet __P((u_char *, int, char *, int));
378 /* Format a packet and log it with syslog */
379 void print_string __P((char *, int, void (*) (void *, char *, ...),
380 void *)); /* Format a string for output */
381 int slprintf __P((char *, int, char *, ...)); /* sprintf++ */
382 int vslprintf __P((char *, int, char *, va_list)); /* vsprintf++ */
383 size_t strlcpy __P((char *, const char *, size_t)); /* safe strcpy */
384 size_t strlcat __P((char *, const char *, size_t)); /* safe strncpy */
385 void dbglog __P((char *, ...)); /* log a debug message */
386 void info __P((char *, ...)); /* log an informational message */
387 void notice __P((char *, ...)); /* log a notice-level message */
388 void warn __P((char *, ...)); /* log a warning message */
389 void error __P((char *, ...)); /* log an error message */
390 void fatal __P((char *, ...)); /* log an error message and die(1) */
392 /* Procedures exported from auth.c */
393 void link_required __P((int)); /* we are starting to use the link */
394 void link_terminated __P((int)); /* we are finished with the link */
395 void link_down __P((int)); /* the LCP layer has left the Opened state */
396 void link_established __P((int)); /* the link is up; authenticate now */
397 void start_networks __P((void)); /* start all the network control protos */
398 void np_up __P((int, int)); /* a network protocol has come up */
399 void np_down __P((int, int)); /* a network protocol has gone down */
400 void np_finished __P((int, int)); /* a network protocol no longer needs link */
401 void auth_peer_fail __P((int, int));
402 /* peer failed to authenticate itself */
403 void auth_peer_success __P((int, int, char *, int));
404 /* peer successfully authenticated itself */
405 void auth_withpeer_fail __P((int, int));
406 /* we failed to authenticate ourselves */
407 void auth_withpeer_success __P((int, int));
408 /* we successfully authenticated ourselves */
409 void auth_check_options __P((void));
410 /* check authentication options supplied */
411 void auth_reset __P((int)); /* check what secrets we have */
412 int check_passwd __P((int, char *, int, char *, int, char **));
413 /* Check peer-supplied username/password */
414 int get_secret __P((int, char *, char *, char *, int *, int));
415 /* get "secret" for chap */
416 int auth_ip_addr __P((int, u_int32_t));
417 /* check if IP address is authorized */
418 int bad_ip_adrs __P((u_int32_t));
419 /* check if IP address is unreasonable */
421 /* Procedures exported from demand.c */
422 void demand_conf __P((void)); /* config interface(s) for demand-dial */
423 void demand_block __P((void)); /* set all NPs to queue up packets */
424 void demand_unblock __P((void)); /* set all NPs to pass packets */
425 void demand_discard __P((void)); /* set all NPs to discard packets */
426 void demand_rexmit __P((int)); /* retransmit saved frames for an NP */
427 int loop_chars __P((unsigned char *, int)); /* process chars from loopback */
428 int loop_frame __P((unsigned char *, int)); /* should we bring link up? */
430 /* Procedures exported from multilink.c */
431 void mp_check_options __P((void)); /* Check multilink-related options */
432 int mp_join_bundle __P((void)); /* join our link to an appropriate bundle */
433 char *epdisc_to_str __P((struct epdisc *)); /* string from endpoint discrim. */
434 int str_to_epdisc __P((struct epdisc *, char *)); /* endpt disc. from str */
436 /* Procedures exported from sys-*.c */
437 void sys_init __P((void)); /* Do system-dependent initialization */
438 void sys_cleanup __P((void)); /* Restore system state before exiting */
439 int sys_check_options __P((void)); /* Check options specified */
440 void sys_close __P((void)); /* Clean up in a child before execing */
441 int ppp_available __P((void)); /* Test whether ppp kernel support exists */
442 int get_pty __P((int *, int *, char *, int)); /* Get pty master/slave */
443 int open_ppp_loopback __P((void)); /* Open loopback for demand-dialling */
444 int establish_ppp __P((int)); /* Turn serial port into a ppp interface */
445 void restore_loop __P((void)); /* Transfer ppp unit back to loopback */
446 void disestablish_ppp __P((int)); /* Restore port to normal operation */
447 void make_new_bundle __P((int, int, int, int)); /* Create new bundle */
448 int bundle_attach __P((int)); /* Attach link to existing bundle */
449 void cfg_bundle __P((int, int, int, int)); /* Configure existing bundle */
450 void clean_check __P((void)); /* Check if line was 8-bit clean */
451 void set_up_tty __P((int, int)); /* Set up port's speed, parameters, etc. */
452 void restore_tty __P((int)); /* Restore port's original parameters */
453 void setdtr __P((int, int)); /* Raise or lower port's DTR line */
454 void output __P((int, u_char *, int)); /* Output a PPP packet */
455 void wait_input __P((struct timeval *));
456 /* Wait for input, with timeout */
457 void add_fd __P((int)); /* Add fd to set to wait for */
458 void remove_fd __P((int)); /* Remove fd from set to wait for */
459 int read_packet __P((u_char *)); /* Read PPP packet */
460 int get_loop_output __P((void)); /* Read pkts from loopback */
461 void ppp_send_config __P((int, int, u_int32_t, int, int));
462 /* Configure i/f transmit parameters */
463 void ppp_set_xaccm __P((int, ext_accm));
464 /* Set extended transmit ACCM */
465 void ppp_recv_config __P((int, int, u_int32_t, int, int));
466 /* Configure i/f receive parameters */
467 int ccp_test __P((int, u_char *, int, int));
468 /* Test support for compression scheme */
469 void ccp_flags_set __P((int, int, int));
470 /* Set kernel CCP state */
471 int ccp_fatal_error __P((int)); /* Test for fatal decomp error in kernel */
472 int get_idle_time __P((int, struct ppp_idle *));
473 /* Find out how long link has been idle */
474 int get_ppp_stats __P((int, struct pppd_stats *));
475 /* Return link statistics */
476 int sifvjcomp __P((int, int, int, int));
477 /* Configure VJ TCP header compression */
478 int sifup __P((int)); /* Configure i/f up for one protocol */
479 int sifnpmode __P((int u, int proto, enum NPmode mode));
480 /* Set mode for handling packets for proto */
481 int sifdown __P((int)); /* Configure i/f down for one protocol */
482 int sifaddr __P((int, u_int32_t, u_int32_t, u_int32_t));
483 /* Configure IPv4 addresses for i/f */
484 int cifaddr __P((int, u_int32_t, u_int32_t));
485 /* Reset i/f IP addresses */
487 int sif6addr __P((int, eui64_t, eui64_t));
488 /* Configure IPv6 addresses for i/f */
489 int cif6addr __P((int, eui64_t, eui64_t));
490 /* Remove an IPv6 address from i/f */
492 int sifdefaultroute __P((int, u_int32_t, u_int32_t));
493 /* Create default route through i/f */
494 int cifdefaultroute __P((int, u_int32_t, u_int32_t));
495 /* Delete default route through i/f */
496 int sifproxyarp __P((int, u_int32_t));
497 /* Add proxy ARP entry for peer */
498 int cifproxyarp __P((int, u_int32_t));
499 /* Delete proxy ARP entry for peer */
500 u_int32_t GetMask __P((u_int32_t)); /* Get appropriate netmask for address */
501 int lock __P((char *)); /* Create lock file for device */
502 int relock __P((int)); /* Rewrite lock file with new pid */
503 void unlock __P((void)); /* Delete previously-created lock file */
504 void logwtmp __P((const char *, const char *, const char *));
505 /* Write entry to wtmp file */
506 int get_host_seed __P((void)); /* Get host-dependent random number seed */
507 int have_route_to __P((u_int32_t)); /* Check if route to addr exists */
509 int set_filters __P((struct bpf_program *pass, struct bpf_program *active));
510 /* Set filter programs in kernel */
513 int sipxfaddr __P((int, unsigned long, unsigned char *));
514 int cipxfaddr __P((int));
516 int get_if_hwaddr __P((u_char *addr, char *name));
517 char *get_first_ethernet __P((void));
519 /* Procedures exported from options.c */
520 int parse_args __P((int argc, char **argv));
521 /* Parse options from arguments given */
522 int options_from_file __P((char *filename, int must_exist, int check_prot,
524 /* Parse options from an options file */
525 int options_from_user __P((void)); /* Parse options from user's .ppprc */
526 int options_for_tty __P((void)); /* Parse options from /etc/ppp/options.tty */
527 int options_from_list __P((struct wordlist *, int privileged));
528 /* Parse options from a wordlist */
529 int getword __P((FILE *f, char *word, int *newlinep, char *filename));
530 /* Read a word from a file */
531 void option_error __P((char *fmt, ...));
532 /* Print an error message about an option */
533 int int_option __P((char *, int *));
534 /* Simplified number_option for decimal ints */
535 void add_options __P((option_t *)); /* Add extra options */
537 int parse_dotted_ip __P((char *, u_int32_t *));
540 * Hooks to enable plugins to change various things.
542 extern int (*new_phase_hook) __P((int));
543 extern int (*idle_time_hook) __P((struct ppp_idle *));
544 extern int (*holdoff_hook) __P((void));
545 extern int (*pap_check_hook) __P((void));
546 extern int (*pap_auth_hook) __P((char *user, char *passwd, char **msgp,
547 struct wordlist **paddrs,
548 struct wordlist **popts));
549 extern void (*pap_logout_hook) __P((void));
550 extern int (*pap_passwd_hook) __P((char *user, char *passwd));
551 extern void (*ip_up_hook) __P((void));
552 extern void (*ip_down_hook) __P((void));
553 extern void (*ip_choose_hook) __P((u_int32_t *));
556 * Inline versions of get/put char/short/long.
557 * Pointer is advanced; we assume that both arguments
558 * are lvalues and will already be in registers.
559 * cp MUST be u_char *.
561 #define GETCHAR(c, cp) { \
564 #define PUTCHAR(c, cp) { \
565 *(cp)++ = (u_char) (c); \
569 #define GETSHORT(s, cp) { \
570 (s) = *(cp)++ << 8; \
573 #define PUTSHORT(s, cp) { \
574 *(cp)++ = (u_char) ((s) >> 8); \
575 *(cp)++ = (u_char) (s); \
578 #define GETLONG(l, cp) { \
579 (l) = *(cp)++ << 8; \
580 (l) |= *(cp)++; (l) <<= 8; \
581 (l) |= *(cp)++; (l) <<= 8; \
584 #define PUTLONG(l, cp) { \
585 *(cp)++ = (u_char) ((l) >> 24); \
586 *(cp)++ = (u_char) ((l) >> 16); \
587 *(cp)++ = (u_char) ((l) >> 8); \
588 *(cp)++ = (u_char) (l); \
591 #define INCPTR(n, cp) ((cp) += (n))
592 #define DECPTR(n, cp) ((cp) -= (n))
595 * System dependent definitions for user-level 4.3BSD UNIX implementation.
598 #define TIMEOUT(r, f, t) timeout((r), (f), (t), 0)
599 #define UNTIMEOUT(r, f) untimeout((r), (f))
601 #define BCOPY(s, d, l) memcpy(d, s, l)
602 #define BZERO(s, n) memset(s, 0, n)
604 #define PRINTMSG(m, l) { info("Remote message: %0.*v", l, m); }
607 * MAKEHEADER - Add Header fields to a packet.
609 #define MAKEHEADER(p, t) { \
610 PUTCHAR(PPP_ALLSTATIONS, p); \
611 PUTCHAR(PPP_UI, p); \
615 * Exit status values.
618 #define EXIT_FATAL_ERROR 1
619 #define EXIT_OPTION_ERROR 2
620 #define EXIT_NOT_ROOT 3
621 #define EXIT_NO_KERNEL_SUPPORT 4
622 #define EXIT_USER_REQUEST 5
623 #define EXIT_LOCK_FAILED 6
624 #define EXIT_OPEN_FAILED 7
625 #define EXIT_CONNECT_FAILED 8
626 #define EXIT_PTYCMD_FAILED 9
627 #define EXIT_NEGOTIATION_FAILED 10
628 #define EXIT_PEER_AUTH_FAILED 11
629 #define EXIT_IDLE_TIMEOUT 12
630 #define EXIT_CONNECT_TIME 13
631 #define EXIT_CALLBACK 14
632 #define EXIT_PEER_DEAD 15
633 #define EXIT_HANGUP 16
634 #define EXIT_LOOPBACK 17
635 #define EXIT_INIT_FAILED 18
636 #define EXIT_AUTH_TOPEER_FAILED 19
639 * Debug macros. Slightly useful for finding bugs in pppd, not particularly
640 * useful for finding out why your connection isn't being established.
647 #define DEBUGIPV6CP 1
652 #ifndef LOG_PPP /* we use LOG_LOCAL2 for syslog by default */
653 #if defined(DEBUGMAIN) || defined(DEBUGFSM) || defined(DEBUGSYS) \
654 || defined(DEBUGLCP) || defined(DEBUGIPCP) || defined(DEBUGUPAP) \
655 || defined(DEBUGCHAP) || defined(DEBUG) || defined(DEBUGIPV6CP)
656 #define LOG_PPP LOG_LOCAL2
658 #define LOG_PPP LOG_DAEMON
663 #define MAINDEBUG(x) if (debug) dbglog x
669 #define SYSDEBUG(x) if (debug) dbglog x
675 #define FSMDEBUG(x) if (debug) dbglog x
681 #define LCPDEBUG(x) if (debug) dbglog x
687 #define IPCPDEBUG(x) if (debug) dbglog x
693 #define IPV6CPDEBUG(x) if (debug) dbglog x
695 #define IPV6CPDEBUG(x)
699 #define UPAPDEBUG(x) if (debug) dbglog x
705 #define CHAPDEBUG(x) if (debug) dbglog x
711 #define IPXCPDEBUG(x) if (debug) dbglog x
713 #define IPXCPDEBUG(x)
717 #if defined(sun) || defined(SYSV) || defined(POSIX_SOURCE)
721 #endif /* defined(sun) || defined(SYSV) || defined(POSIX_SOURCE) */
725 #define MIN(a, b) ((a) < (b)? (a): (b))
728 #define MAX(a, b) ((a) > (b)? (a): (b))
731 #endif /* __PPP_H__ */